Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Scan Tool Data Definitions - PCM

Generator F Terminal: The scan tool displays 0-100 percent. The Generator F Terminal is an input to the PCM which indicates the percentage of total capacity that the generator is producing.

Generator L Terminal: The scan tool displays Active or Inactive. The PCM applies ignition voltage to the Generator L Terminal to start the charging process. When the generator is at operating speed and producing voltage the scan tool displays Active.